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L-cut stream startup

  • US 8,682,139 B2
  • Filed: 05/02/2011
  • Issued: 03/25/2014
  • Est. Priority Date: 05/02/2011
  • Status: Active Grant
First Claim
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1. A computer-implemented method for playback of an audio stream before synchronized playback of the audio stream with a video stream, the method comprising:

  • receiving, when playback of a selected digital media content having an audio stream and a video stream is initiated, an audio playback point within the digital media content, wherein audio stream and the video stream which are encoded as corresponding sequences of intervals;

    retrieving a first interval of the audio stream beginning at the audio playback point;

    initiating retrieval of one or more additional intervals of the audio stream that are subsequent to the first interval;

    playing the first interval of the audio stream without yet playing any interval of the video stream; and

    synchronizing playback of the video stream to the audio stream by;

    determining a video start transfer point that occurs subsequent to the audio playback point; and

    initiating retrieval of the video stream beginning at the video start transfer point;

    playing back at least a portion of the retrieved video by skipping playback of at least one frame of the video stream while playing a corresponding portion of the audio stream;

    upon determining that the audio stream and the video stream can be played synchronously, synchronously playing the audio stream and the video stream; and

    upon determining that the audio stream and the video stream cannot be played synchronously because the video stream is not available;

    continuing playback of the audio stream;

    determining a new video start transfer point that occurs subsequent to the video start transfer point; and

    initiating retrieval of the video stream beginning at the new video start transfer point.

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